- ...that survived.
幸存者的故事 - The start of the Triassic Period...
三叠纪开始 - and the rivers of fire are gradually subsiding.
熔岩河逐渐平息 - In their wake,
因此 - cooling lava covers an area
冷却的熔岩覆盖了一片区域 - half the size of the United States...
有半个美国那么大 - ...in a crust up to three kilometers deep.
表层厚达三千米